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Buchholz relay is a type of protection device used in oil-filled electrical transformers to detect and prevent internal faults.
Used in oil-filled transformers
Detects and prevents internal faults
Monitors gas accumulation and triggers alarm or trip signal
Helps in preventing major transformer failures
Named after Max Buchholz, who invented it in 1921
The principle of a transformer is based on Faraday's law of electromagnetic induction.
Transformers work on the principle of mutual induction between two coils to transfer electrical energy from one circuit to another.
When an alternating current flows through the primary coil, it creates a changing magnetic field which induces a voltage in the secondary coil.
The ratio of the number of turns in the primary coil to the nu...
I was interviewed before Oct 2023.
A resistor is an electrical component that resists the flow of electrical current. Types of transformers include step-up, step-down, isolation, and autotransformers.
Resistors are used to limit current flow in a circuit
Types of transformers include step-up transformers, which increase voltage, and step-down transformers, which decrease voltage
Isolation transformers are used to isolate a circuit from the power source
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I applied via Naukri.com and was interviewed before May 2023. There were 2 interview rounds.
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Chromatography is a technique used to separate and analyze mixtures of chemicals based on their properties.
Chromatography involves passing a mixture through a stationary phase, which separates the components based on their interactions with the stationary phase and mobile phase.
Different types of chromatography include gas chromatography, liquid chromatography, and thin-layer chromatography.
It is commonly used in chemi...
I applied via Company Website
Shree Abirami Enggineering Works interview questions for popular designations
I applied via Campus Placement and was interviewed before Jan 2021. There was 0 interview round.
I applied via Other and was interviewed in Jan 2018. There were 4 interview rounds.
I am a final year engineering student with a passion for innovative projects. My final year project is an IoT-based smart home automation system.
Final year project: IoT-based smart home automation system
Used sensors to detect motion, temperature, and light levels
Developed a mobile app to control home appliances remotely
Implemented voice control using Amazon Alexa integration
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I applied via Approached by Company and was interviewed in Aug 2017. There were 5 interview rounds.
posted on 20 Feb 2015
posted on 10 Sep 2015
I applied via PLACEMENT
posted on 10 Sep 2017
I was interviewed before Sep 2016.
based on 4 interviews
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Service Engineer
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Site Engineer
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Transformer Testing Engineer
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